racer

type NS ¶

type NS struct {
	Addr    string
	Fqdn    string
	Version pigdns.RequestFamily
}

func (n *NS) Copy() NS

func (n *NS) String() string

type QueryRacer ¶

type QueryRacer struct {
	// contains filtered or unexported fields
}

the query racer, given a list of authoritative nameservers and a query, starts a run to get the result. It peeks one nameserver from the list and starts an exchange. It starts a timer also. If the timer expires, it starts a new exchange using the next nameserver. If one of the nameservers returns an answer, the run ends. If all of the nameserers give errors, the run ends

func NewCachedQueryRacer(datadir string, cacheSize int) *QueryRacer

func NewQueryRacer() *QueryRacer

func (qr *QueryRacer) Run(servers []NS, req *dns.Msg, isIPV6 bool) (*dns.Msg, error)